#define _CRT_SECURE_NO_WARNINGS
#define include
#include<stdlib.h>
#include<stdio.h>
#include<string.h>
void fun(char* s, char t[100]) {
	int i = 0;
	int j = 0;
	int arr_1[100] = {};
	for (i = 0; i < 100; i++)
	{
		arr_1[i] = t[i];
	}
	for (i = 1; i < 100; i=i+2)
	{
		if (t[i]!='\0')
		{
			int num = t[i];
			if (num % 2 ==0)
			{
				for (j = i; j < 100; j++)
				{
					arr_1[j] = arr_1[j + 1];
				}
			}
		}
	}
	for (i = 0; i < 100; i++)
	{
		if (t[i] != '\0') {
			printf("%c", arr_1[i]);
		}
	}
}
int main() {
	char arr[100] = {}; 
	int i = 0;
	char* s = arr;
	for (i = 0; i < 100; i++)
	{
		scanf("%c", &arr[i]);
		if (arr[i]=='\n')
		{
			arr[i] = '\0';
			break;
		}
	}
	fun(s, arr);
	return 0;
}